Txtbubuckle and cable-head



mamm

J W. DiCKSON.

TURNBUCKLE AND CABLE HEAD.

APPLICATION man MAY25. 191s.

Patented June 3, 1919.

IN VENTOR.

J. W. Ddclcso'n,

ATTORNEYs JOHN W. DICKSON, OF DALLAS, TEXAS.

TURNBUCKLE AND CABLE-HEAD.

Specification of Letters Patent.

Patented June 3, 1.919.

Application filed ma 25, 1918. Serial No. 236,642.

To all whom it may concern:

lie it known that I, JOHN W. DIoKsoN, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented new and useful Improvements in Turnbuckles and Cable Heads, of which the following is a specification.

My invention relates to turnbuckles and consists in the novel features herein shown, described and claimed.

Specifically, my object is to make a turnbuckle and cable head for connecting a guy to a frame in aeroplane construction and the like.

Figure 1 is a fragmentary elevation showing a guy connected to a frame by a turnbuckle and cable head embodying the principles of my invention, parts being broken away and shown in section.

Fig. 2 is a sectional detail of the cable head and taken on the line 22 of Fig. 1, the guy and turnbuckle being broken away.

Fig. 3 is a sectional detail on the line 2-2 of Fig. 1 and turned end for end.

Fig. 4 is a sectional detail of the swedgeferrule removed from the head.

Fig. 5 is a cross-section on the line'5-5 of Fig. 1 and looking in the direction indicated by the arrows.

, Fig. 6 shows a double cable head for connecting two guys to a single turnbuckle.

Fig. 7 is a view analogous to Fig. 1 and showing a modified form of turnbuckle barrel.

Referring to Fig. 1, the guy 1 is connected to the cable head 2. The turnbuckle screw 3 is swiveled in the cable head 2 and screwseated in the barrel 4 and the barrel 4 is connected to-the rigid frame 5.

The guy 1 is preferably a twisted wire cable and the funnel-shaped swedge-ferrule 6 has a small end 7 and the end of the cable is inserted through this small end and through the body of the ferrule and the strands of the cable are unwound and separated and turned back to form a head 8 and then the head is drawn into the ferrule and the large end 9 of the ferrule is filled with solder 10. The solder will bond with the wires of the head 8 and with the ferrule and make a solid tapered mass having a smooth outer surface 11. A groove 12 is formed across the large end face 1?) and across the solder 1Q.

The cable head 2 is pear-shaped and has a central longitudinally extending chamber l4, a shoulder 15 at one end of the chamber 14, and a bore 16 leading through the 0nd from the chamber 14 and centrally located, and has a funnel-shaped seat 17 leading through the opposite end from the bore 16 and a sideopening 18 leading to the seat 17. The turnbuckle screw 3 is inserted through the opening 16 and has a head 20 engaging theshoulder 15. A nut is fixed upon the screw 3 near the end face 21 of the cable head to form a wrench seat 22 for manipulating the screw. The guy 1 is threaded through the seat 17 and through the opening 18 and then the swedge-ferrule (3 is applied to the guy and then the guy is drawn backwardly to seat the ferrule 6 in the seat 17 A cotter 23 is inserted through the head in position to fit in the groove 12 and press the sWedge-ferrule into its seat and hold the swedge-ferrule from rotating in the seat. The ends 24 of the cotter are bent outwardly and hammered against the outer face of the head to hold the cotter tightly in place.

The rigid frame 5 has a flange 25 provided with an opening 26. The turnbuckle barrel 4 may be made from a long straight piece of half round material and this piece of material is bent upon itself at its center to bring the flat faces toward each other, thus producing the half barrels 27 and 28, said half barrels being spaced apart to form the slot 29. A screw-threaded opening 30 is formed between' the half barrels from their open ends and the open ends are reduced in size to form the clamp seat 31. The open ends are spread apart and one end is threaded through the opening 26 until Qthe return bend portion 32 fits in the opening26 and the outer portion of the flange 25 'fits in the slot 29. Then the ends of the barrels are brought toward each other, a tubular sheath 33 is slid on to the barrel against the edge of the flange 25, a clamping collar '34 is placed upon the seat 31, a lock-nut 35 is placed upon the screw 3, and the screw 3 screwed into the barrel by manipulating the wrench seat 22 and rotating or swiveling the screw in the head 2 until the guy 1 is drawn taut. Then the wing-headed screw 36 screw-seated in the clamp 34is manipulated to clamp the half barrels 27 and 28 tightly upon the screw and the lock-nut 35 is manipulated and screwed firmly against the ends of the half barrels.

The sheath. 33 is round and smooth and straight and covers the half barrels 27 and 28 from the edge of the flange 2-5 to the clamp seat 31 so as to present a smooth surface to the wind and stiffen the parts.

The clamping collar 34 and screw 86 tighten the half barrels against the screw to hold the screw from rotating and from a tendency to strip, and the lock-nut 35 still further tightens the parts to prevent rattling and movement.

\Vhen, for any reason, it is desired to change the guy 1, it is only necessary to remove the cotter, back the ferrule 6 out of the seat 17 and out through the opening 18 and cut the guy or draw itout through the opening 18, and then insert a new one.

\Vhen desired, the cable head may be made double, asshown in Fig. 6, for attachment to two guys 37 and 38, thereby providing means for connecting two guys with one turnbuckle construction.

In Fig. 7 I have shown a modified form of the turnbuckle barrel. The turnbuckle barrel 39 is a piece of round rod having a slot 40 in one end to receive an ear 41, and a pin 42 is inserted through the barrel and through the ear to make a hinged connection. A screw-threaded bore 43 is formed from the other end of the barrel, the screw 3 is screwed into the bore 43, the end of the barrel 39 is reduced in size and longitudinally slotted by making a transverse saw cut ll, a clamping collar 45 is placed upon this reduced end, the lock-nut 35 fits against the end of the barrel 39, and the wing-headed set-screw 46 is screw-seated through the clamp 45, so that when thescrew A6 is tightened and the lock-nut 35 is tightened a good joint is made between the screw 3 and the barrel 39.

In Figs. 3 and 4 I have shown the swedgeferrule (i and the end of the guy in condition for the reception of the solder 10 while in Fig. 2 I have shown the complete construction.

Thus I have produced a turnbuckle and cable head construction involving a single swiveled screw, the. guy being removably attached to the cable head so that the guys may be readily changed.

Various changes may be made without departing from the spirit of my invention as claimed.

I claim:

1. A cable head having a central chamber, a tapered seat extending one way from the chamber, a screw-head seat extending the other way from the chamber, and a side opening leading to the chamber; a guy fixed to a swedge-ferrule; the swedge-ferrule fitting in the tapered seat in the head, the guy and swedgeferrule "being inserted through the side opening to the tapered seat; a screw fitting the screw seat, a barrel fitting the screw, and a nut fixed upon the screw for operating the screw.

2; A cable head having ,a central chamber, a tapered seat at one end of the chamber, a screw seat at the other end of the chamber, and a side opening; a screw swiveled in the screw seat, a swedge-ferrule having a groove across its large end, a guy 'fixed to the swedge-ferrule and inserted through the side opening to the tapered seat, and a cotter inserted through the head behind the swedge-ferrule and fitting in the groove to hold the swedge-ferrule from rotating.

3. A turnbuckle and cable head comprising a cable head, means for attaching a guy removably to the cable head, a turnbuckle screw swiveled in the cable head, means on the screw for operating the screw, and a barrel to receive the screw; said barrel comprising a half round bar bent at its center with its flat faces toward each other and the flat faces being spaced apart, and there being a screw-threaded bore formed from the ends of the bar to receive the screw, and a clamp upon the ends of the bar to tighten the barrel against the screw.

4. A turnbuckle and cable head comprising a cable head, means for attaching a guy removably to the cable head,.a turnbuckle screw swiveled in the cable head, means on the screw-for operating the screw, a barrel to receive the screw; said barrel comprising a half round bar bent at its center with its flat faces toward each other and the flat faces being spaced apart, and there being a screw-threaded bore formed from the ends of the bar to receive the screw, and a clamp JOHN W. DICKSON. 

